Motorcycle



FIG. 1 is a front perspective view of a motorcycle showing our new design;

FIG. 2 is a back perspective view thereof;

FIG. 3 is a side elevation view of the left side thereof;

FIG. 4 is a side elevation view of the right side thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is an oblique perspective view principally illustrating the right side thereof. 

The ornamental design for a motorcycle, as shown. 